If you do not know your membership number, please follow the instructions below:

Institutional Members – You will not be able to register without your membership number. Please contact Mrs. Margaret de Ruiter-Molloy m.deruitermolloy@cbs.nl who will provide you with the correct membership number.

Individual Members - Please continue with your registration and a member of the ISI team will contact you to confirm your membership details shortly.

If your membership has expired or is not valid when you register and pay, your registration will be amended to the non-member rate and an additional charge will be added.

To become an ISI/Association member, please click here.